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svetoff [14.1K]

3 years ago

13

Lana got a tip of 16%, or 0.16For delivering pizzas for the party if the total bill for the pizza was $98.19 about how much was

Lana’s tip

1 answer:

Phantasy [73]3 years ago

3 0

You can answer this question by writing and solving an equation to model the calculation of the total bill.

$1.16x=98.19$

$x=84.65$

$84.65

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please explain the steps that are used to solve this??? Given:2(10 -13x)+9=-34x+60 Step 1:20-26x=-34x+60 Step 2:-26x=-34x+40 Ste

solmaris [256]

You left out the 9 in the whole equation. The 1st step you had right you just forgot to put +9. 2nd step you are combining the like terms and get 11-26x=-34x+40. Step 3: you are trying to isolate the x on one of the sides. You need to switch the 11 over to the 40 and get 29. Move -34x over to -26x and get 8x. Step 4 all you are doing in dividing 8 from both sides and get 5.

4 0

3 years ago

Graph and check to solve the linear system <br> x+y=3<br> -2x+y=-6

Alenkinab [10]

Answer:

-x - y = -3

-2x + y = -6

-3x = -9

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y = 0

(3,0)

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2 years ago

Solve math question of 2 x +8 < 18

Elena-2011 [213]

Answer:

x < 5

Step-by-step explanation:

2 x +8 < 18

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2x+8-8 < 18 -8

2x< 10

Divide by 2

2x/2 < 10/2

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8 0

3 years ago

what number could be included in the data set 9,12,17,15,13 so the MEDIAN of the numbers in the set results in 14?

Georgia [21]

<em><u>Your answer is 12,17,15,13 if you take out the 9 your median will be 14.</u></em>

~*"AUBA14"*~

6 0

3 years ago

Read 2 more answers

Write an equation of the line that is perpendicular to 3x - 4y equals 9 + contains (-4, -5)

Inga [223]

Slope-Intercept Form: y = mx+b, with m = slope and b = y-intercept

So perpendicular lines have <u>slopes that are negative reciprocals</u> to each other, but firstly we need to find the slope of the original equation. The easiest method to find it is to convert this standard form into slope-intercept.

Firstly, subtract 3x on both sides of the equation: $-4y=-3x+9$

Next, divide both sides by -4 and your slope-intercept form of the original equation is $y=\frac{3}{4}x-\frac{9}{4}$

Now looking at this equation, we see that the slope is 3/4. Now since our new line is perpendicular, this means that <em>its slope is -4/3.</em>

Now that we have the slope, plug that into the m variable and plug in (-4,-5) into the x and y coordinates to solve for the b variable as such:

$-5=-\frac{4}{3}*-4+b\\\\-5=5\frac{1}{3}+b\\\\-10\frac{1}{3}=b$

<u>In short, your new equation is y = -4/3x - 10 1/3.</u>

3 0

3 years ago

Read 2 more answers